@book{1999xtheainulanguageandtheindoeuropeanprotolangu,
  title = {アイヌ語とインド・ヨーロッパ祖語 : 語根を比較する = The Ainu language and the Indo-European protolanguage : the comparison between roots},
  author = {日出志 鳴海},
  year = {1999},
  url = {http://ci.nii.ac.jp/ncid/BA40696389}
}